Casino selects backup power system
A 4-MW standby power system backs up life safety equipment, gaming, and security loads for an entertainment venue in the Arizona desert.
Soft-loading, closed-transition design eliminates disruptions
“The standby power system is set up as a prioritized system so that the emergency systems, such as the fire pump, fire alarm, and smoke control systems get the highest priority,” said Leslie Fernandez, senior electrical engineer with Las Vegas-based JBA Consulting Engineers. “The second priority is the legally required standby systems, such as emergency lighting and elevators, followed by business-critical equipment that includes security systems and the gaming floor. The soft-loading, closed-transition design allows the generator sets to assume the load or transfer the load back to the utility in a smooth, controlled way so that voltage and frequency transients (sags) are avoided.
Final validation testing with facility loads and a load bank on the generators were completed in early 2013 in preparation for the resort’s May 2013 grand opening. The facility has experienced several utility outages since the standby system was installed and, according to Wanamaker, the system’s performance has been exceptional. This means Twin Arrow guests can enjoy the casino and hotel facilities no matter what the weather—and save their luck for the games.
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